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Fruit and Vegetable Sorting Machines

By serena wang, 2025-09-12

With the increasing consumption of fresh produce, consumers are increasingly demanding the appearance, taste, and safety of fruits and vegetables. For growers and processors, the ability to quickly and accurately grade harvested fruits and vegetables by size, color, and defects directly impacts product premiums and market competitiveness. Traditional manual sorting is not only inefficient (less than one ton per person per day) but also difficult to ensure consistent standards. Fruit and vegetable sorting machines, leveraging automation and intelligent recognition, are key equipment to address this pain point, ensuring that every fruit and vegetable reaches market in optimal condition.

I. Achieving Standardized Sorting

The core of the fruit and vegetable sorting machine is the synergy between multi-dimensional inspection and automated sorting, simulating the judgment logic of manual sorting and achieving industrial scale-up. Its technical core is embodied in three major systems:

1. Visual Recognition System: Equipped with 3-5 sets of high-definition industrial cameras (with a resolution of up to 20 megapixels) and multispectral sensors, it captures surface color variations (e.g., redness in apples, yellowness in tangerines), defects (spots, wormholes, mechanical damage), and shape contours of fruits and vegetables. Using AI algorithms, it compares against preset standards (e.g., export-grade tangerines must be free of spots larger than 3mm in diameter), achieving recognition accuracy of 0.1mm, far exceeding the 0.5mm error of the human eye.

2. Weight and Dimension Inspection System: During transport, a dynamic weighing sensor (with an accuracy of ±1g) and a laser diameter gauge work synchronously to rapidly record individual fruit weight, diameter, length, and other data. Taking potatoes as an example, they can be sorted by weight, such as 50-100g and 100-150g, or by diameter, such as 3-5cm and 5-7cm, to meet the packaging needs of different distribution channels.

3. Pneumatic Sorting System: Based on the pre-processing inspection results, the PLC control system triggers high-speed pneumatic pushers (response time <0.1 second) at the corresponding positions, pushing the fruits and vegetables into different grading channels. The pusher force is adjustable (5N for soft fruits and vegetables like tomatoes, 8N for hard fruits and vegetables like potatoes) to avoid damaging the peel.

II. Standardized Process: Fully Automated Control from Intake to Grading

A complete fruit and vegetable sorting machine consists of four core steps, requiring no human intervention:

1. Buffered Intake: Harvested fruits and vegetables are conveyed via an elevator to a vibrating screen. Vibration removes surface dirt and impurities, while simultaneously separating stacked fruits into single layers to prevent obstruction during subsequent inspection.

2. Multi-Dimensional Inspection: Fruits and vegetables travel along a conveyor belt through a visual inspection zone, a weight inspection zone, and a size inspection zone. Over 10 indicators are analyzed within 300 milliseconds to generate a grading result.

3. Intelligent Sorting: Based on pre-set grading standards, pneumatic pushers precisely push fruits and vegetables into the corresponding discharge channel. Defective fruit is automatically diverted to a waste area, reducing manual removal costs.

4. Graded Output: Fruits and vegetables of different grades fall into corresponding collection bins or conveyor lines, which can be directly connected to packaging equipment for integrated sorting and packaging.

III. Four core advantages improve both sorting efficiency and quality.

1. 10-fold increase in efficiency, 70% reduction in labor costs. Manual sorting processes 200-300 kg per person per hour, while a single fruit sorting machine can process 2-5 tons/hour (multiple machines can be linked together to increase the capacity to 10 tons/hour).

2. 99% grading accuracy, 15% reduction in waste. Through standardized testing, the error in fruit and vegetable grading has been reduced from ±15% for manual sorting to ±1%. For example, when sorting citrus, it can accurately distinguish between "special grade" and "first grade" (slightly spotted) fruit, preventing high-quality fruit from being mistakenly classified as inferior.

3. Compatible with over 200 fruits and vegetables, flexible to meet diverse needs. By changing detection parameters and adjusting the push rod force, it can sort over 200 fruits and vegetables, including apples, citrus, potatoes, tomatoes, and mangoes. When switching varieties, simply call up the corresponding program on the touchscreen, and debugging is completed in 5 minutes, meeting the needs of sorting small batches and multiple varieties.

4. Food-grade design, meeting global safety standards. Components that come into contact with fruits and vegetables are made of 304 stainless steel and food-grade silicone. The conveyor belt has a gap of less than 0.5mm to prevent fruit from getting stuck. It supports CIP cleaning in place and complies with standards.

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IV. Scenario-Specific Configuration: A Full-Lifecycle Solution from Farm to Factory

Small Farms: 1-2 ton/hour fruit beverage production line ，need sorting machine (occupies 15 square meters), supports 2-3 grading standards, and manual loading. Suitable for farmers with a daily processing capacity of less than 10 tons, with a return on investment of approximately 8 months.

Medium-Sized Processing Enterprises: 3-5 ton/hour standard fruit juice production line , equipped with automatic feeding, five-stage sorting, and automatic waste collection. It can be integrated with washing and waxing machines, processing 30-50 tons per day, meeting the needs of regional fresh produce distribution centers.

Large Export Enterprises: 8-10 ton/hour customized beverage production line , integrated with AI deep learning modules (capable of autonomously optimizing sorting standards), a data traceability system, and integrated cold chain logistics, with an annual processing capacity exceeding 10,000 tons, meeting the stringent requirements of export-grade fruits and vegetables.

Precise grading not only ensures uniform appearance but also maximizes the value of each fruit and vegetable. Premium fruit commands a 30% premium in high-end supermarkets, processed fruit is directly supplied to juice plants to minimize losses, and substandard fruit is promptly diverted to reduce waste. Contact us now to receive a personalized sorting plan.

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What machine is used to make cheese?

By serena wang, 2025-09-04

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Typically the equipment is stainless steel and consists of a cheese press , cheese vats , Stainless Steel Tanks , homogenizers , heat exchangers ， Sterilization Equipment ， cheese stretching , etc...

First, what machine should be used to cut cheese? Cheese Cutter : Redefining Precision in Cheesemaking

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In the complex cheese production process, the final cut is crucial for ensuring perfect quality and appearance. Whether you're creating a delicate slice of Brie or a rich block of cheddar, an uneven cut can ruin months of meticulous work. This cheese cutter is a revolutionary solution, combining advanced engineering with intuitive design to tackle even the most challenging cutting challenges.

How It Works: Superior Engineering for a Wide Range of Cheeses
Adaptive Blade System: Interchangeable blades crafted from 316 stainless steel easily handle a variety of cheese textures. The serrated blade easily slices through firm Parmesan without crumbling; the non-stick-coated blade slices through smooth Camembert without sticking; and the rippled blade creates a perfect edge when slicing mozzarella sticks.
Intelligent Pressure Control: A built-in sensor adjusts downward pressure in real time. For semi-soft cheeses like Gouda, it applies gentle pressure to prevent deformation; for firmer Swiss cheese, it applies more pressure to ensure a clean cut.
Variable Speed Drive: The motor speed range is 50-300 RPM, with high motor speed (200-300 RPM) for cutting hard cheeses to minimize drag, and low motor speed (50-100 RPM) for cutting soft cheeses to prevent tearing.
Customized solutions are available to meet the needs of various operations, from small artisanal creameries to large factories.

Why choose our cheese cutter ?
1. With over 20 years of dairy expertise, our engineers can provide customized solutions.
2. Highly configurable portioning
3. Quick changeover between multiple cutting formats
4. Custom trimming or special size formats
5. Configurable design for a wide range of cheeses
6. Repeatable portion control
7. Effective cheese block reduction
8. Precise and superior cut quality
9. Low maintenance
10. Easy to clean

This cutter respects the art of cheesemaking while maintaining industrial efficiency, improving cheese quality, reducing waste, and enabling scalable production. Contact us today for a personalized demonstration and learn how precision cutting can boost your profitability.

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Explore comprehensive milk production line solutions

By serena wang, 2025-08-06

Explore Weishu's comprehensive milk production line solutions.

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Weishu specializes in providing cutting-edge solutions for the dairy industry, offering a range of milk production lines to meet diverse market needs. Our advanced milk processing equipment ensures efficient, high-quality production of a variety of dairy products and bottled condensed milk.

Our milk production lines offer complete dairy processing solutions. They are divided into pasteurized milk processing lines and UHT milk processing lines to meet diverse needs. The production process includes a fresh milk collection system, fresh milk pasteurization, high-pressure homogenization, and advanced packaging systems.
Safety is a top priority in dairy production. Our milk pasteurization equipment ensures that the final product is free of harmful microorganisms, ensuring it is safe for consumption while preserving its taste and nutritional value.
Our packaging and filling machines are designed to package dairy products efficiently and precisely. Whether it's traditional milk, soy milk, or oat milk, we ensure safe packaging and preserve the freshness and quality of the product.

At Weishu, we are committed to providing innovative and reliable solutions for the dairy industry. Our milk processing lines are renowned for their precision, quality, and efficiency, helping your business provide high-quality dairy products to your customers. Contact us today to learn how our milk processing line solutions can boost your production capabilities and meet changing market demands.

If you want to know more information about this machine, please contact us～
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Where can electric heated stainless steel tanks be used?

By serena wang, 2025-07-30

Electric Heated Stainless Steel Tanks: Reshaping Dairy and Beverage Production Efficiency

In today's fiercely competitive dairy and beverage industry, the performance of production equipment has become a key factor in companies' market share. As core equipment specifically tailored for dairy and beverage production, electric heated stainless steel tanks , with their irreplaceable advantages, are becoming the preferred choice for companies seeking to improve quality and efficiency.

I. Core Advantages: Safeguarding the Complete Production Process

Efficient Heating, Accelerating Production Heating speeds far exceed those of traditional equipment, significantly reducing material heating time and increasing production efficiency by over 30% at the same production capacity, enabling companies to quickly respond to order demands.

Precise Temperature Control, Locking in Quality Standards Temperature control accuracy of ±1°C ensures consistent compliance with standards for key processes such as pasteurization and homogenization , minimizing product spoilage due to temperature fluctuations and reducing defective product rates.

Energy Saving and Environmental Protection, Lowering Overall Costs With an energy conversion rate exceeding 90%, electric heating tanks save 40% of energy compared to coal-fired or gas-fired equipment and produce no exhaust emissions, complying with environmental regulations. Long-term use can significantly reduce energy costs.

Hygienic and reliable, ensuring safety. Made of food-grade 304/316 stainless steel, the interior is smooth and free of dead corners, making it impervious to bacterial growth. It supports CIP cleaning in place and fully complies with GMP standards, ensuring product safety from the source.

Durable and stable, extending equipment lifecycle. Excellent corrosion resistance withstands long-term erosion from acidic and alkaline beverages and high-protein dairy products, resulting in a service life of over 10 years, reducing equipment replacement frequency and maintenance costs.

Easy operation reduces management complexity. Equipped with an intelligent touchscreen system, process parameters can be set with one click, making it easy for even novice operators to quickly master the process. Features like over-temperature alarms and pressure protection eliminate operational safety hazards.

II. Core Function: Covering the entire production process

Process Heating Precisely matches the heating requirements of different materials, such as 72-85°C for dairy pasteurization and 50-60°C for juice concentrate, ensuring stable and controllable process parameters.

Constant Temperature Insulation The excellent insulation layer design maintains the material temperature within a ±2°C range for over 6 hours, facilitating subsequent filling and blending processes while reducing reheating energy consumption.

Efficient Sterilization Combining precise temperature and time control, it achieves pasteurization and ultra-high temperature sterilization, killing over 99.9% of pathogens and spoilage bacteria, extending product shelf life.

Homogeneous Mixing The built-in variable frequency stirring system achieves 360° seamless mixing of materials, ensuring uniform distribution of dairy fat, sufficient dissolution of beverage additives, and improved product taste consistency.

Choosing an electrically heated stainless steel tank is more than just choosing a piece of equipment; it's choosing a production solution that reduces costs and increases efficiency. It can help companies significantly increase production capacity and reduce costs while ensuring product quality, building a core advantage in the fiercely competitive market.

Deploy electrically heated stainless steel tanks now and make efficient production a new engine for your business's growth!

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How does a cheese press work?

By serena wang, 2025-07-14

In the previous cheese making process, the press is a key step in determining the taste and flavor. From dense soft cheese to firm hard cheese, each unique dessert requires carefully controlled pressure. As the core equipment of the modern cheese workshop, the press is reproducing the essence of traditional craftsmanship with the power of science and technology, bringing dual innovations in quality and efficiency to the dairy industry.

Precise pressure, interpreting the working wisdom of the press
The working principle of the cheese press is simple in structure, but it actually contains exquisite control of physical pressure. After the curd is cut and stirred, it will be placed in a filter cloth or mold. At this time, the press applies uniform and continuous curd pressure to the milk through a hydraulic, pneumatic or mechanical transmission system. The pressure gradually increases from the initial low, and then the milk in the curd slowly seeps out. This process directly affects the moisture content and consistency of the curd.
The cheese press is equipped with a strict pressure control system, which can set the pressure size, duration and even pressure rhythm according to the needs of different cheese varieties. For example, when making hard cheddar cheese, it is necessary to apply up to 500 kg of pressure and maintain it for more than 12 hours; while soft Brie cheese only needs to be pressed at a lower pressure for a short time. This precise control avoids the problems of loose cheese texture and uneven flavor caused by uneven pressure during traditional manual pressing, so that each piece of cheese maintains stable high quality.

Multiple products, all varieties of cheese production
The application of cheese presses covers almost all production scenarios of cheese categories. In small manual work, desktop small presses can meet the production needs of daily batches, and are equipped with a variety of mold processes such as round and square, which can easily make special products such as cheese and fresh cheese. On large industrial production lines, the press can be fully automated from realizing the curd interface to whey collection, and the processing capacity has reached batch, providing the best pressing support for the mass production of cheese.

Advantages of cheese presses
For fermented cheese, the role of the press is the most critical. By controlling the amount of whey exudation, the acidity and fermentation environment of the cheese can be accurately adjusted, laying the foundation for the subsequent maturation process. For example, blue cheese provides retained adaptive moisture during the pressing stage, providing ideal conditions for the growth of Penicillium, forming a unique texture and flavor.

From handicraft workshops to industrial production lines, cheese presses are redefining the standards of cheese production with the efficient power of science and technology. It is not only an efficiency-enhancing tool, but also a bridge between inheritance and innovation. Choosing the right cheese press injects the core driving force for the sustainable development of dairy companies, and stimulates opportunities in the fierce market competition with stable quality and production capacity.

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